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參數(shù)資料
| 型號： | MAX4397S |
| 廠商： | Maxim Integrated Products, Inc. |
| 英文描述： | Audio/Video Switch For Dual SCART Connectors |
| 中文描述： | 音頻/視頻開關(guān)，用于雙SCART連接器 |
| 文件頁數(shù)： | 16/30頁 |
| 文件大?。?/td> | 834K |
| 代理商： | MAX4397S |
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M
Volume Control
The TV channel volume control ranges from -56dB to
+6dB in 2dB steps. The VCR volume control settings
are programmable for -6dB, 0dB, and +6dB. These gain
levels are referenced to the application inputs, where
some dividers are present. With the ZCD bit set, the TV
volume control switches only at zero-crossings, thus
minimizing click noise. The TV outputs can bypass the
volume control. Likewise, the monaural output signal
can be processed by the TV volume control or it can
bypass the volume control.
Digital Section
Serial Interface
The MAX4397 uses a simple 2-wire serial interface
requiring only two standard microprocessor port I/O
lines. The fast-mode I
2
C-compatible serial interface
allows communication at data rates up to 400kbps or
400kHz. Figure 5 shows the timing diagram of the sig-
nals on the 2-wire interface.
The two bus lines (SDA and SCL) must be at logic-high
when the bus is not in use. The MAX4397 is a slave
device and must be controlled by a master device.
Pullup resistors from the bus lines to the supply are
required when push-pull circuitry is not driving the lines.
The logic level on the SDA line can only change when
the SCL line is low. The start and stop conditions occur
when SDA toggles low while the SCL line is high (see
Figure 5). Data on SDA must be stable for the duration
of the setup time (t
SU,DAT
) before SCL goes high. Data
on SDA is sampled when SCL toggles high with data on
SDA stable for the duration of the hold time (t
HD,DAT
).
Note that data is transmitted in an 8-bit byte. A total of
nine clock cycles are required to transfer a byte to the
MAX4397. The device acknowledges the successful
receipt of the byte by pulling the SDA line low during the
9th clock cycle.
Audio/Video Switch for Dual SCART Connectors
16
______________________________________________________________________________________
SCL
SDA
t
LOW
t
F
t
R
t
HD
,
STA
t
HD
,
DAT
t
HD
,
STA
t
SU
,
DAT
t
SU
,
STA
t
BUF
t
SU
,
STA
START CONDITION
REPEATED START CONDITION
START CONDITION
Figure 5. SDA and SCL Signal Timing Diagram
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相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| MAX4397SACTM+ | 功能描述:視頻開關(guān) IC Audio/Video Switch for Dual SCART Con RoHS:否 制造商:Texas Instruments 開關(guān)數(shù)量:4 開啟電阻（最大值）:12 Ohms 傳播延遲時間: 開啟時間（最大值）: 關(guān)閉時間（最大值）: 最大工作溫度:+ 85 C 最小工作溫度:- 40 C 封裝 / 箱體:WQFN-42 封裝:Reel |
| MAX4397SACTM+T | 功能描述:視頻開關(guān) IC Audio/Video Switch for Dual SCART Con RoHS:否 制造商:Texas Instruments 開關(guān)數(shù)量:4 開啟電阻（最大值）:12 Ohms 傳播延遲時間: 開啟時間（最大值）: 關(guān)閉時間（最大值）: 最大工作溫度:+ 85 C 最小工作溫度:- 40 C 封裝 / 箱體:WQFN-42 封裝:Reel |
| MAX4397SCTM | 功能描述:視頻開關(guān) IC RoHS:否 制造商:Texas Instruments 開關(guān)數(shù)量:4 開啟電阻（最大值）:12 Ohms 傳播延遲時間: 開啟時間（最大值）: 關(guān)閉時間（最大值）: 最大工作溫度:+ 85 C 最小工作溫度:- 40 C 封裝 / 箱體:WQFN-42 封裝:Reel |
| MAX4397SCTM+ | 功能描述:視頻開關(guān) IC Audio/Video Switch for Dual SCART Con RoHS:否 制造商:Texas Instruments 開關(guān)數(shù)量:4 開啟電阻（最大值）:12 Ohms 傳播延遲時間: 開啟時間（最大值）: 關(guān)閉時間（最大值）: 最大工作溫度:+ 85 C 最小工作溫度:- 40 C 封裝 / 箱體:WQFN-42 封裝:Reel |
| MAX4397SCTM+T | 功能描述:視頻開關(guān) IC Audio/Video Switch for Dual SCART Con RoHS:否 制造商:Texas Instruments 開關(guān)數(shù)量:4 開啟電阻（最大值）:12 Ohms 傳播延遲時間: 開啟時間（最大值）: 關(guān)閉時間（最大值）: 最大工作溫度:+ 85 C 最小工作溫度:- 40 C 封裝 / 箱體:WQFN-42 封裝:Reel |
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